/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.config.spring.parsers.specific;

import org.mule.runtime.core.component.DefaultJavaComponent;
import org.mule.runtime.core.component.simple.StaticComponent;
import org.mule.runtime.core.util.IOUtils;
import org.mule.runtime.core.util.StringUtils;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

/**
 * BDP which parses the <return-data> element of the <static-component>.
 */
public class StaticComponentDefinitionParser extends SimpleComponentDefinitionParser {

  public StaticComponentDefinitionParser() {
    super(DefaultJavaComponent.class, StaticComponent.class);
  }

  @Override
  protected AbstractBeanDefinition getObjectFactoryDefinition(Element element) {
    AbstractBeanDefinition objectFactoryBeanDefinition = super.getObjectFactoryDefinition(element);

    String returnData = null;

    NodeList list = element.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
      if ("return-data".equals(list.item(i).getLocalName())) {
        Element rData = (Element) list.item(i);
        if (StringUtils.isNotEmpty(rData.getAttribute("file"))) {
          String file = rData.getAttribute("file");
          try {
            returnData = IOUtils.getResourceAsString(file, getClass());
          } catch (IOException e) {
            throw new BeanCreationException("Failed to load test-data resource: " + file, e);
          }
        } else {
          returnData = rData.getTextContent();
        }
      }
    }

    if (returnData != null) {
      Map props = new HashMap();
      props.put("data", returnData);
      objectFactoryBeanDefinition.getPropertyValues().addPropertyValue("properties", props);
    }

    return objectFactoryBeanDefinition;
  }
}
